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Looking for good PSU

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February 21, 2014 5:22:58 AM

I will buy i7-4770k, two R9 290X, OC it and put water block, ssd, couple of hdd, 12+ fans.

I think that 1150W PSU is a minimum, because it isn't 100% efficient and OC'ed it would be the top-power draw. But I know that they can degrade over time, so the good choice is the ~1300W PSU.

It must have gold or platinum certificate, one 140mm fan that is quite enough, have all kinds of protections(don't want to burn all of my stuff just because of 30$ economy on PSU) and be of very good quality.

I think that EVGA Supernova 1300 is a good choice, but I can't find where to buy it. It is a good enough PSU with a good price(230$).

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a b ) Power supply
February 21, 2014 8:03:26 AM

HiTechObsessed said:
Agreed. 850w is plenty for what you're looking at, typically won't see over 650w during gaming, and that's with overclock.

http://www.superbiiz.com/detail.php?name=XFX-850BX&c=CJ or
http://www.amazon.com/dp/B0029F21LA/?tag=pcpapi-20

Would be perfect. Why does it have to be 80+ gold or platinum? You won't see any kind of difference, as the efficiency levels between even bronze and platinum are only about 10% or so.


I really dont think an 850W would suffice. Have a look at the estimated wattage even without addition of fans-http://pcpartpicker.com/p/2XnWc
Edit- Parts are added randomly without giving a thought just to estimate the wattage.
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a c 107 ) Power supply
February 21, 2014 8:08:03 AM

Estimated wattage doesn't mean anything. What wattage you will actually see in real life is what is important. Like I said, that build would see around 650w or so during game play. Overclocked maybe around 700w tops. Power supply calculators and manufacturers usually vastly overstate power requirements. As long as the power supply is quality made, and has enough amp delivery on the +12v rail, it doesn't really matter what the wattage rating is.
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a b ) Power supply
February 21, 2014 8:19:37 AM

HiTechObsessed said:
Estimated wattage doesn't mean anything. What wattage you will actually see in real life is what is important. Like I said, that build would see around 650w or so during game play. Overclocked maybe around 700w tops. Power supply calculators and manufacturers usually vastly overstate power requirements. As long as the power supply is quality made, and has enough amp delivery on the +12v rail, it doesn't really matter what the wattage rating is.


I think we should never cut our budget on a PSU, even a bit of overkill on the PSU side is favored. 700W is not recommended for R9 290x XF, atleast by me. Moreover, a less watt PSU cannot provide amperage also since Watts and amperage (Power and current) are functions of each other (dependent on each other). Even if the 700W is enough, the PSU may fail in terms of providing current.
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a c 107 ) Power supply
February 21, 2014 8:32:01 AM

Again, it's quality over quantity in PSUs.

http://www.tweaktown.com/reviews/5991/sapphire-radeon-r...

This setup includes a stupidly overclocked i7 Extreme CPU, and tops out at 750w under full load. The XFX I listed above is able to provide 840w with 70A on the +12v rail, which is plenty for this build.

I don't care what PSU you buy, as long as you buy a quality one. I just want to make sure people don't leave here thinking you need a 1300w power supply for 2 way Crossfire.
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a b ) Power supply
February 21, 2014 8:45:15 AM

HiTechObsessed said:
Again, it's quality over quantity in PSUs.

http://www.tweaktown.com/reviews/5991/sapphire-radeon-r...

This setup includes a stupidly overclocked i7 Extreme CPU, and tops out at 750w under full load. The XFX I listed above is able to provide 840w with 70A on the +12v rail, which is plenty for this build.

I don't care what PSU you buy, as long as you buy a quality one. I just want to make sure people don't leave here thinking you need a 1300w power supply for 2 way Crossfire.


Yes he cretainly does not need a 1300W. :) 
And did u read what they recommend ? :p 
"We'd recommend at least the 900 Watt mark, but you couldn't go wrong with a quality 1000 Watt unit."
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a c 107 ) Power supply
February 21, 2014 8:54:35 AM

Well yeah, you couldn't go wrong with a quality 1500w unit either lol like I said, I don't care what he ends up with, I just don't like people getting the idea that more wattage means better, as that is absolutely wrong lol
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a b ) Power supply
February 21, 2014 10:04:01 AM

HiTechObsessed said:
Well yeah, you couldn't go wrong with a quality 1500w unit either lol like I said, I don't care what he ends up with, I just don't like people getting the idea that more wattage means better, as that is absolutely wrong lol


He could. With a 1500 W, there will be a big hole :D  in his pocket.
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February 21, 2014 10:45:51 AM

I'm planning to get custom water cooling for the video cards, processor and motherboard. That means decent pump and good fans.
Yeah, typical load is far more lower, but I'm planning on using AND upgrading(like 1 more video card if necessary) this PC for over 3 years.
Also, I want 4.7-5 Ghz on CPU, and that means 140 TDP.
Also - good OC on video cards means going over 300 TDP on video cards(that is just not possible on air or stock coolers).

So, 1000W is a minimum requirement for the PSU, and it could degrade and I can't count on any upgrade with it(like additional HDDs). I have counted the wattage with a calculator on overclockers(there is a lot of options and it counts almost everything), and it says 1000W without any overhead, but that just not true for the 3 years system. So, 1150 is a minimum, but 1250-1300 is a good overhead.

Gold or platinum is just because good performance AND durability, don't want it to be burnt or bigger bill for electricity.
Budget is something around 300$, I saw some options, but they don't have a lot of reviews, and I just wanted to ask for the advise of a good one.
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a c 107 ) Power supply
February 21, 2014 12:45:14 PM

Alright, now we're all on the same page lol I wasn't anticipating a full custom water loop going to CPU and 3 290x's lol This is an Antec one, fully modular, and has 4 strong +12v rails carrying an ample 50a each, which is plenty of current.

http://www.superbiiz.com/detail.php?name=PS-HCP130P&c=C...
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February 22, 2014 2:49:02 AM

Yeah, saw that one.
I'm now choosing between Antec HCP-1300, EVGA Supernova 1300 and AEROCOOL Imperator 1150W . Seems that I can't buy EVGA, so the Antec will be next on my list. Any good reviews? It seems to be new and doesen't have lots of reviews.

Any else options maybe? I saw "be quite!" but it too expensive.
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a c 107 ) Power supply
February 22, 2014 3:13:36 PM

Antec one would be my suggestion, I would stay away from Aerocool, they're not too great in stressful situations, which is what you're going for lol
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